A.give flexibility
B.support the strands laid around it
C.allow some circulation around the strands
D.allow lubrication inside the rope
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A.Gun tackle
B.Luff tackle
C.Two-fold tackle
D.Double-luff tackle
A.cotton
B.lumber
C.steel
D.tires
A.should be coiled in a clockwise direction
B.should be coiled in a counterclockwise direction
C.may be coiled either clockwise or counterclockwise
D.should never be coiled
A.the engineers，from a panel in the engine room
B.shutting off the current to the winch
C.pushing the switch lever arm while the winch is running
D.All of the above
A.increasing the shaft RPM prior to release
B.using a pelican hook for quick release
C.using preventers
D.using a short chain for the lead through the stern chock
最新試題
The rope which is the lightest is（）.
The only wire rope termination which may be made in the field is（）.
Back-up wires on a towed vessel provide（）.
A whipping on a fiber line（）.
Extended cyclical variations in tensions will cause an anchor chain to break due to（）.
Cribbing is（）.
After deploying the anchor，a permanent chain chaser is（）.
Manila slings should not be used to load（）.
A tackle by which the outer end of a boom is raised and lowered is the topping（）.
A splice that can be used in running rigging，where the line will pass through blocks，is a（）.